| 摘要 |
PROBLEM TO BE SOLVED: To provide a cement product for cleaning atmosphere in which the efficiency removing harmful substances is excellent and not reduced with the lapse of time. SOLUTION: The cement product for cleaning atmosphere consists of a kneaded material containing 100 pts.wt. alumina cement, 5 to 50 pts.wt. titanium oxide, a 100 to 700 pts.wt. filler, and 20 to 200 pts.wt. water. Further, a 10 to 200 pts.wt. pozzolan substance can be added to the 100 pts.wt. alumina cement. Further, a water proof material can be applied on the surface of a product obtained from the kneaded material. As the proof material, a silicone compound is preferably used. |
